General Purpose I/O (GPIO) Lines

The General Purpose I/O (GPIO) lines of your Basler camera can be configured to operate as input or output lines.

Characteristics

• Unlike opto-coupled I/O lines, GPIO lines aren't preconfigured as input or output lines. You can specify the line mode manually.
• GPIO lines have the advantage of very short propagation delays compared to opto-coupled I/O lines. The delays are approximately 10 times lower.
• GPIO lines are considerably more susceptible to EMI compared to opto-coupled I/O lines. Under harsh EMI conditions, the GPIO line can turn out to be unusable.
• GPIO lines are compatible with TTL signals.

Common Tasks

Task	Feature
Specifying whether you want the GPIO line to operate as an input or output line	Line Mode
Determining the current status of one or all GPIO lines (high / low)	Line Status
Specifying an action for when the camera receives an input signal on the GPIO line	Trigger Selector
Selecting an output signal for a GPIO line	Line Source
Inverting all input or output signals (high -> low, low -> high)	Line Inverter

Timing Characteristics

→ See Timing Characteristics of I/O Lines.